Selecting Control Parameters of Mechanical Systems with Servoconstraints

Khusanov, Kahramanjon

doi:10.1051/e3sconf/202126404085

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…To determine the value of the basic parameters for controlling the motion of a roll pair, let's first compose a differential equation of motion in the Lagrange form with holonomic servo constraints, obtained in [12]:…”

Section: Methodsmentioning

confidence: 99%

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Controllability and stability capacity of a roll pair motion research

Khusanov¹

2022

Eureka: PE

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The process of deriving the equation of the perturbed motion of a roll pair during the processing of leather material is discussed in the article, taking into account the influence of dynamic factors. It is shown that one of the reasons for the unstable stress state on the contact surfaces in the roller mechanism are dynamic factors arising from inaccuracies in the manufacture of its individual parts, assembly defects, and the occurrence of an oscillatory process in the roller mechanism, as well as due to the non-uniform thickness of the processed material at its gripping during starting and stopping the machine. Methods for determining optimal controls are shown; they provide asymptotic stability of the unperturbed motion of a roll pair and the torque applied to the upper roll as a function of generalized coordinates.It is shown that the width of the contact strip of the clamp, which depends on the radii of the rolls and the hardness of the coatings, has a significant effect on the efficiency of the rolls. The larger the shaft radius, the lower the actual pressure per unit contact area. It is shown that the squeezing efficiency increases with the improvement of the conditions for the removal of the squeezable liquid from the rolls (with their horizontal arrangement), with an increase in its temperature and a decrease in viscosity. Efficiency decreases with increasing material speed and thickness. It is shown that the width of the contact strip of the clamp, which depends on the radii of the shafts and the stiffness of the coatings, has a significant impact on the efficiency of the shafts. The larger the shaft radius, the lower the actual pressure per unit contact area

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Section: Methodsmentioning

confidence: 99%

“…To solve the stabilization problem, let's use the following theorem [19]: Controlled system (12) can always be stabilized with respect to the manifold defined by constraints (2).…”

Section: Engineeringmentioning

confidence: 99%